Which county in Delaware has the lowest flood risk?

This page ranks counties in Delaware by flood risk, lowest first, when the latest data is available.

How is this flood risk ranking calculated?

Counties in Delaware are ranked by flood risk (FEMA National Risk Index, FEMA NRI v1.20), lowest first. Values describe the county, not an individual property. Source vintage is shown on the page.

How does Delaware compare to the rest of the US for flood risk?

This list is Delaware only. See the national ranking of the lowest counties for flood risk at hearthmap.app/best/lowest-flood-risk.

Lowest Flood Risk Counties in Delaware (2026)

County-level rankings for flood risk in Delaware are not available right now. You can still explore flood risk across every state, county, town, and ZIP on the full interactive map.

See the map of flood risk

How this ranking works

This page ranks Delaware counties by flood risk, sorted so the lowest places appear first. Click any county to see its housing, schools, crime, and demographics in detail.

For flood risk, a lower value is generally more favorable, so the top of the list is the lowest. Want to weigh flood risk against schools, taxes, commute, and more at once? Use the live map to build a custom match.

Data comes from public sources. Source attribution and the exact data vintage are shown above and on the full map of flood risk.

Frequently asked questions

Which county in Delaware has the lowest flood risk?: This page ranks counties in Delaware by flood risk, lowest first, when the latest data is available.
How is this flood risk ranking calculated?: Counties in Delaware are ranked by flood risk (FEMA National Risk Index, FEMA NRI v1.20), lowest first. Values describe the county, not an individual property. Source vintage is shown on the page.
How does Delaware compare to the rest of the US for flood risk?: This list is Delaware only. See the national ranking of the lowest counties for flood risk at hearthmap.app/best/lowest-flood-risk.